blk-mq: remove legacy check in queue blk_freeze_queue()

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 4c82dc4..a58d2d9 100644 (file)
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -177,8 +177,6 @@ void blk_freeze_queue(struct request_queue *q)
         * exported to drivers as the only user for unfreeze is blk_mq.
         */
        blk_freeze_queue_start(q);
-       if (!q->mq_ops)
-               blk_drain_queue(q);
        blk_mq_freeze_queue_wait(q);
 }